return undefined;

}

function readOptionalNumber(params: Record<string, unknown>, keys: string[]): number | undefined {

function isPositiveSafeInteger(value: number): boolean {

return Number.isSafeInteger(value) && value > 0;

}

function readOptionalPositiveInteger(

params: Record<string, unknown>,

keys: string[],

): number | undefined {

for (const key of keys) {

const value = params[key];

if (typeof value === "number" && Number.isFinite(value)) {

if (typeof value === "number" && isPositiveSafeInteger(value)) {

return value;

}

if (typeof value === "string" && value.trim()) {

const parsed = Number(value);

if (Number.isFinite(parsed)) {

const trimmed = value.trim();

const parsed = /^\d+$/.test(trimmed) ? Number(trimmed) : Number.NaN;

if (isPositiveSafeInteger(parsed)) {

return parsed;

}

}

chatId,

startTime: readFirstString(ctx.params, ["startTime", "start_time"]),

endTime: readFirstString(ctx.params, ["endTime", "end_time"]),

pageSize: readOptionalNumber(ctx.params, ["pageSize", "page_size"]),

pageSize: readOptionalPositiveInteger(ctx.params, ["pageSize", "page_size"]),

pageToken: readFirstString(ctx.params, ["pageToken", "page_token"]),

accountId: ctx.accountId ?? undefined,

});

const members = await runtime.getChatMembers(

client,

chatId,

readOptionalNumber(ctx.params, ["pageSize", "page_size"]),

readOptionalPositiveInteger(ctx.params, ["pageSize", "page_size"]),

readFirstString(ctx.params, ["pageToken", "page_token"]),

resolveFeishuMemberIdType(ctx.params),

);

const members = await runtime.getChatMembers(

client,

chatId,

readOptionalNumber(ctx.params, ["pageSize", "page_size"]),

readOptionalPositiveInteger(ctx.params, ["pageSize", "page_size"]),

readFirstString(ctx.params, ["pageToken", "page_token"]),

resolveFeishuMemberIdType(ctx.params),

);

if (ctx.action === "channel-list") {

const runtime = await loadFeishuChannelRuntime();

const query = readFirstString(ctx.params, ["query"]);

const limit = readOptionalNumber(ctx.params, ["limit"]);

const limit = readOptionalPositiveInteger(ctx.params, ["limit"]);

const scope = readFirstString(ctx.params, ["scope", "kind"]) ?? "all";

if (

scope === "groups" ||